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| Registros recuperados: 39 | |
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| Ribaudo, Marc. |
| Nitrogen is the single most important input a farmer can control to increase crop yields on nonirrigated fields. Given this, and the fact that nitrogen has been a relatively inexpensive input, farmers have an economic incentive to “apply a little extra” to ensure that crops have the necessary nutrients when they need them most. As a consequence, excess nitrogen remains in the soil and freely moves into water resources or into the atmosphere. Agriculture is the single largest source of nitrogen compounds entering the environment in the U.S., contributing 73 percent of nitrous oxide emissions, 84 percent of ammonia emissions, and 54 percent of nitrate emissions in recent years. The production and release of nitrogen, however, has greatly changed the Earth’s... |
| Tipo: Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/121012 |
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| Ribaudo, Marc; Agapoff, Jean. |
| The Environmental Protection Agency requires concentrated animal feeding operations to develop and implement a comprehensive nutrient management plan. Changes in manure management to meet nutrient application standards will generally increase production costs. Some of these costs can be offset by savings from replacing commercial fertilizer with manure nutrients, and through financial assistance programs such as the U.S. Department of Agriculture's Environmental Quality Incentives Program (EQIP). A manure application cost model was used to examine the costs to confined dairy farms of meeting nutrient application standards, and the ability of fertilizer offsets and EQIP to reduce these costs. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/20213 |
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| Gollehon, Noel R.; Caswell, Margriet; Ribaudo, Marc; Kellogg, Robert L.; Lander, Charles; Letson, David. |
| Census of agriculture data were used to estimate manure nutrient production and the capacity of cropland and pastureland to assimilate nutrients. Most farms (78 percent for nitrogen and 69 percent for phosphorus) have adequate land on which it is physically feasible to apply the manure produced onfarm at agronomic rates. (The costs of applying manure at these rates have not been assessed). Even so, manure that is produced on operations that cannot fully apply it to their own land at agronomic rates accounts for 60 percent of the Nation's manure nitrogen and 70 percent of the manure phosphorus. In these cases, most counties with farms that produce "excess" nutrients have adequate crop acres not associated with animal operations, but within the county, on... |
| Tipo: Report |
Palavras-chave: Manure; Nutrients; Manure nutrients; Animal waste; Confined livestock; Confined animal feeding operation; CAFO; Feedlot beef; Dairy cows; Swine; Poultry; Animal unit; Manure nitrogen; Manure phosphorus; Water quality; Livestock Production/Industries. |
| Ano: 2001 |
URL: http://purl.umn.edu/33763 |
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| Ribaudo, Marc; Ghosh, Gaurav S.; Shortle, James S.. |
| The Environmental Protection Agency and the U.S. Department of Agriculture are promoting point/nonpoint trading as a way of reducing the costs of meeting water quality goals while giving nonpoint sources a larger role in meeting those goals. Farms can create offsets or credits in a point/nonpoint trading program by implementing management practices such as conservation tillage, nutrient management, and buffer strips. To be eligible to sell credits, farmers must first comply with baseline requirements. The EPA defines a baseline as the pollutant control requirements that apply to a seller in the absence of trading. EPA guidance recommends that the baseline for nonpoint sources be management practices that are consistent with the water quality goal. A... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Nonpoint pollution; Emissions trading; Management practices; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49258 |
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| Ribaudo, Marc; Agapoff, Jean. |
| The U.S. Environmental Protection Agency requires concentrated animal feeding operations to develop and implement a comprehensive nutrient management plan. Changes in manure management to meet nutrient application standards will generally increase production costs. Some of these costs can be offset by savings from replacing commercial fertilizer with manure nutrients, and through financial assistance programs such as the U.S. Department of Agriculture's Environmental Quality Incentives Program (EQIP). A manure application cost model was used to examine the costs to confined dairy farms of meeting nutrient application standards, and the ability of fertilizer offsets and EQIP to reduce these costs. |
| Tipo: Journal Article |
Palavras-chave: Animal feeding operations; Environmental Quality Incentive Program; Dairy; Manure nutrients; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/10246 |
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| Ribaudo, Marc; Kaplan, Jonathan D.; Christensen, Lee A.; Gollehon, Noel R.; Johansson, Robert C.; Breneman, Vincent E.; Aillery, Marcel P.; Agapoff, Jean; Peters, Mark. |
| Nutrients from livestock and poultry manure are key sources of water pollution. Ever-growing numbers of animals per farm and per acre have increased the risk of water pollution. New Clean Water Act regulations compel the largest confined animal producers to meet nutrient application standards when applying manure to the land, and USDA encourages all animal feeding operations to do the same. The additional costs for managing manure (such as hauling manure off the farm) have implications for feedgrain producers and consumers as well. This report's farm-level analysis examines on-farm technical choice and producer costs across major U.S. production areas for hauling manure to the minimum amount of land needed to assimilate manure nutrients. A regional... |
| Tipo: Report |
Palavras-chave: Manure management costs; Price and quantity adjustments; Water quality; Animal waste; Manure nutrients; Excess nutrients; Confined animals; CAFO; Manure nitrogen; Manure phosphorus; Manure use; Assimilative capacity; Nutrient management plan; Environmental Economics and Policy; Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/33911 |
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| Key, Nigel D.; McBride, William D.; Ribaudo, Marc. |
| In recent years, structural changes in the hog sector, including increasing farm size and regional shifts in production, have altered manure management practices. Over the same period, changes to the Clean Water Act, new state regulations, and increasing local conflicts over odor have influenced manure management decisions. This study uses data from two national surveys of hog farmers to examine how hog manure management practices vary with the scale of production and how these practices evolved between 1998 and 2004. The findings provide insights into the effects of structural changes and recent policies on manure management technologies and practices, the use of nutrient management plans, and manure application rates. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Hog production; Manure management; Structural change; Environmental regulation; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6071 |
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| Registros recuperados: 39 | |
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